The Telecom Behnke module 21-1107 is a function module for door intercom stations of the series 21, specifically designed as a broadband speaker with a rated power of 20 W. It enables clear, spatially balanced sound reproduction and is ideal for use in modern door communication systems. The module features a robust front panel made of aluminum in V2A design, which is both aesthetically pleasing and durable. The material thickness is 4 mm, ensuring high mechanical stability and resistance to external influences. The compact design with dimensions of 90 x 90 mm (H x W) allows for easy integration into existing systems. An integrated anti-rotation protection ensures error-free installation and prevents incorrect mounting. For operation, a 7-watt auxiliary amplifier and a power supply are required, highlighting the modularity of the system. The module is finished in silver, seamlessly fitting into modern, high-quality installations.